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Link between CO2 emissions and fuel consumption

The equivalent petrol and diesel figures relative to CO 2 , according to The Society of Motor Manufacturers and Traders (SMMT)

CO
2
emissions (g/km)
MPG – Petrol (approx)
MPG – Diesel (approx)
10067.374.3
12056.561.4
13052.358.0
14048.754.3
16041.547.1
18037.241.5
20033.637.2
22030.733.6
24028.231.4
30022.424.8
35019.321.4
40016.818.8
45014.916.6

Source SMMT